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JMusic - Java Music Library

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/*
 * Tempo.java
 *
 * Created on 2 March 2004, 13:52
 */

package jm.music.data;

/**
 *
 * @author  Rene Wooller
 */
public class Tempo {
    // do andante etc.
    public static double ANDANTE = 140;
    
    
    public static double DEFAULT_TEMPO = 60;
    public static double DEFAULT_LOW   = 0.0000001;
    public static double DEFAULT_HIGH  = 1000000;
    
    private double value = this.DEFAULT_TEMPO;
    
    private double lowestTempo = DEFAULT_LOW;
    
    private double highestTempo = DEFAULT_HIGH;
    
    /** Creates a new instance of Tempo */
    public Tempo() {
    }
    
    public Tempo(double initTempo) {
        value = initTempo;
    }
    
    public void setTempo(double newTempo) {
        value = setInBounds(newTempo);
    }
    
 //  public void setTempo(int newTempo) {
 //       value = setInBounds(newTempo);
  //  }
    
    private double setInBounds(double newTempo) {
        if(newTempo <= lowestTempo) 
            newTempo = lowestTempo;
        else if(newTempo >= highestTempo)
            newTempo = highestTempo;   
        return newTempo;
    }
    
    public double getPerMinute() {
        return value;
    }
    
    public double getPerSecond() {
        return 60.0 / this.value;
    }
    
    public void setHighestTempo(double d) {
        d = checkBelowZero(d);  
        highestTempo = d;
    }
    
    public double getHighestTempo() {
        return this.highestTempo;
    }
    
    public void setLowestTempo(double d) {
        d = checkBelowZero(d);
        this.lowestTempo = d;
    }
    
    private double checkBelowZero(double d) {
        if(d < 0) {
            System.out.println("lowestTempo must be positive number!");
            System.out.println("setting it to 0.001");
            d = 0.001;
        }
        return d;
    }
    
    public double getLowestTempo() {
        return this.lowestTempo;
    }
}